/*
 * The MIT License (MIT)
 * 
 * Copyright (c) 2020 邓俊兴 (Deng Junxing)
 * Email : jesson3264@163.com
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

/**
 * @file   c_memcomm.h
 * @author jesson3264@163.com
 * @date   2021-01-01
 * @brief  share memory and normal memory common info.
 * */
#ifndef MEMORY_MEMCOMM_H
#define MEMORY_MEMCOMM_H
#include <stdint.h>
#include <stddef.h>

#pragma pack(1)
typedef struct ChunkHead
{
    //uint32_t reserve_field;  ///<
    uint32_t size;             ///< user use size.
    char data[0];
}ChunkHead;
#pragma pack()

enum { ALIGN = 8 };

typedef union obj {
    union obj* free_list_link;
    char client_data[1];
}obj;

/**
 * @brief ROUND_UP by ALIGN
 *
**/
size_t ROUND_UP(size_t bytes);

#endif
